Chapter 220 Does my software still have this function?
In fact, it is completely reasonable for everyone to think of Colombo first.
After all, he was the one who followed the MA-60 prototype No. 01 during the natural icing test flight that complied with the Category 4 requirements of the CCAR standard last time.
Whether it is from the experience of following test flights or the familiarity with Chinese testers and testing processes, they are all worthy of their duties.
Besides, doesn’t your Finmeccanica Group own a share of the MA-60 aircraft?
So Colombo can't escape no matter what.
In fact, when he was in AgustaWestland, he also participated in many natural icing experiments on helicopters. If the normal conditions were left alone, he might not be very afraid.
But the experience of following the flight during the last round of tests was so unforgettable that for a long time after that, Colombo’s main nightmare was seeing ice outside through the porthole. The wing was broken due to violent flutter.
And this time the weather conditions were even worse.
What's more important is that now he has just been transferred to the parent company for a promotion and a salary increase. He has not even had time to find a lover to have fun, and he is really unwilling to risk his life again.
It’s really hard to think about it.
It is said that Chinese people all follow the golden mean and are not so adventurous?
In a few seconds, Colombo's expression changed from sadness to happiness.
However, he also knew that now that the matter was over, if he still wanted to continue in this industry, he would not be able to refuse.
“Ahem——”
Colombo moved his shoulders unnaturally and struggled to smile.
Rather than being pushed to the shelves, it is better to volunteer:
“A few months ago, I followed the Huaxia team to complete a natural icing test flight, and also talked with Professor Lin, Mr. Chang, We have worked together with Mr. Liang, so there should be no problem if I am one of the candidates this time, right?”
Chang Haonan and the others don’t really care who follows them, as long as what he says after getting off the plane can convince the public. Colombo is still an acquaintance after all, so naturally he has no objection.
Others on the European side were even more eager to see someone "volunteer" to take on this task, and they immediately voted unanimously.
However, after Colombo said a few words of thanks to everyone, he continued:
"In addition... China said that we can send two or three people to participate in the experiment. For the sake of fairness, this How about the opportunities be divided equally among the representatives of the three parties?”
This is a very good statement.
First of all, we regard the quota for this follow-up test as a rare opportunity, and propose that the three most important parties in the European delegation: JAA, Finmeccanica and Airbus each obtain one——
Since you dragged me into the water, stop standing on the dry shore and get wet together.
Sure enough, everyone who was watching the excitement turned their attention to Schneider and Valette next to them.
Unexpectedly, the former immediately resorted to a big move:
“I have severe symptoms of airsickness, as you saw on the way here, why not let Professor Lorenzo represent our Airbus company? He happens to be an expert in fracture mechanics and fluid mechanics, and he can see more things on the plane.”
Although Fernando Lorenzo is not young, he is curious about unknown things. His desire has not diminished at all. When he was young, he was probably the only one among the people who really regarded this time as a good thing. Therefore, he was very excited when he heard that someone recommended him. If he had not taken into account his status as a member of the negotiating delegation, I am afraid that he would have been Everyone jumped up to express their agreement.
Schneider, who was still frightened, finally felt relieved and subconsciously raised his hand to loosen the knot of his tie.
The wave of disaster in Colombo just now almost left him breathless.
The JAA team leader Valette over there is not so lucky. Her situation is similar to Colombo. She was promoted not long ago and has not had time to establish her own team and prestige. Besides, she Among the people brought, there was no scientific madman like Lorenzo who was eager to volunteer, and he would not go even if he named others.
Everyone knows that even if the negotiation is successful, the main credit must belong to the three team leaders. Just kidding, what are you doing with a few thousand francs a month?
“I agree with Mr. Colombo’s opinion, then let me participate in the JAA aspect myself.”
So in this somewhat weird atmosphere, the European candidates for participating in the flight test were determined.
For the Chinese delegation, the main purpose today is to get the Europeans to agree to participate in the subsequent test flight process.
Or to put it more bluntly, give yourself a chance to show off your skills.
Now that the main goal has been achieved, Huai Guomo began to summarize his speech and prepared to end this round of negotiations:
"In this case, our second round of negotiations will end here for the time being. If nothing goes wrong, the icing test will be carried out in three days. During this time, we will send special personnel to take charge of the schedule of Mr. Colombo, Ms. Valette and Professor Lorenzo.”
Perhaps because the negotiations generally went very smoothly, the old general was in a good mood. He looked at the foreigners opposite and added:
"As for other members of your party, considering the issue of confidentiality, It is best not to go out alone. If necessary, we can arrange some visits together. Haojing is the birthplace of our Chinese civilization. More than 8,000 years ago, Hua Xu, the ancestor of the Chinese nation and the female leader of the Huaxu Kingdom, My hometown is Huaxu Town in Lantian County, Haojing, which was the ancient capital of the Thirteen Dynasties. You will not be disappointed.”
Because this negotiation needs to be hidden from the FAA and even some forces in China. , so this European delegation is not large in number and its level is not very high, so it is easy to arrange.
Many scenic spots and historic sites in later generations were not open to public ticket sales in this era. Moreover, we were just starting work after the New Year, so not many domestic units would organize visits, so we could just book the venue directly.
……
Although Chang Haonan himself absolutely believed that there would be no problems with this test flight, no matter from the perspective of aviation safety science or from the perspective of the three Europeans themselves, it was impossible to get on the plane and participate in such a type of risk. test flight subjects.
So while waiting for the completion of the aircraft modification in the past few days, Chang Haonan and Lin Guofan's task was to introduce to Colombo and others the preliminary work they had carried out in preparation for the test flight without leaking the secrets, and to dispel any doubts. Of course, the three of them are mainly concerned about Colombo and Valette.
“Are you really not even prepared to do wind tunnel testing?”
Colombo looked at the calculation results given by Chang Haonan on the computer screen, although it clearly stated that they were conducted under SLC conditions. Level flight without flaps for 5-10 minutes will only reduce the wing lift coefficient by 22%. There is no risk of accidents for the MA-60 under light load, but the computer program in front of you is a black box after all, so it still cannot Put him completely at ease.
Chang Haonan called up the icing simulation program again, output a few parameters and started the calculation, then turned around and said:
"Actually, Mr. Colombo, with all due respect, even if we really do wind tunnel testing, it doesn't make any sense at all."
"Professor Lorenzo should know that even the best in the world The extreme conditions that NASA's icing wind tunnel can create are only a water droplet diameter of 35 microns, an airspeed of 50m/s, and an ambient temperature of minus 30°C."
Lorenzo next to him nodded. Express approval of this statement.
Chang Haonan then said:
“But the extremely harsh working conditions we are going to test this time are 400 micron water droplet diameter and 114m/s airspeed (equivalent to 410km/h) and -30℃ temperature.”
"So, wind tunnel simulation is actually the same whether we do it or not. Why don't we take a look at our simulation results."
After speaking, he took a step aside with his hands behind his back, revealing the face that had just been blocked. Computer screen behind you.
This is not the first time that Chang Haonan ran the parameters just now, so this time the software only needs to spend a short time to retrieve the results from the database and then render them into graphics.
However, the GPU of computers in this era is still too poor. It is really troublesome to build a 3D module alone, so Chang Haonan simply left an interface to display the calculation results directly through CATIA's 3D modeling tool. come out.
So what was displayed in front of the three Europeans was actually a CATIA interface, but a simulation diagram of the icing shape of the wing was clearly drawn on it!
"This..."
Lorenzo, who has always been a scholar, seemed to have seen a ghost. He pointed at the screen in front of him and was speechless for a long time. After a while, he pointed at himself again. , and then pointed at the screen again, as if the language module was temporarily sealed.
Just when Chang Haonan was worried and curious, hesitating whether to pinch the old gentleman, Valette next to him spoke:
"Professor Lorenzo, you guys are developing Does the software still have this function?”
The old professor finally recovered his ability to speak:
"I...I don't know either?"
(End of this chapter)